Recording instrument.



. W. H. BRISTOL; RECORDING INSTRUMENT.

APPLICATION FILED DBG.2 4,1908.

Patented Apr. 13-, 1909.

UNITED STATES PALJLENT onnron.

WILLIAM H. BRISTOL, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE BRISTOL COM- PANY, OFWATERBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

nnconnine msrnunmn'r.

- specification.

' My invention relatesto improvements in recording devices; and particularly to that class of recording devices desi ned for extreme sensitiveness, and in whic the record-- 111g arm swings freely, being normally free and clear of the record surface, as for exampIle'the recording device disclosed in my prior S. patent #813,689. Ithas for its objectto feed the marking fluid to the, recording arm in such a manner that the said arrn is required to carry only a minimum and constant amount of the marks ing fluid, whereby the sensitiven'ess of the instrument is not impaired; and also, to rovide means for delivering the marking uid to a record surface located in a vertical plane, whether the record surface be of the circular or strip type, thereby permitting the record to be readily observed and affording an instrument suited for switchboards.

Figure 1 is a front elevation of my improvediecording device, a portion of the cover being broken away. Fig. 2 is a partial vertical section of same; Fig. 3 is a view of av modification. Figs. '4 and 5 are detail viewsshowing res ectively, on an enlarged scale, the receptac e for retaining the mark: ing fluid, anda rtion of the recording surface and recor 'ng arm with its capillary tube. v

Similar characters of reference designate corresponding parts throughout the several views.

- ed to move over a record surface which may be either of the circular ty 14, Figs. 1 and 2 or of the-strip type 15, Fig. 3. This record surface .is advanced through an arbor 16 driven by a suitable clock 17, the chart .14

being revolved by. the hub 18 and. nutlQ on Specification of Letters Patent.

Application filed December 24., 1908.

Patented April 18, 1909.

Serial No. 469,065.

driving arbor 16 of the. clock; and the strip 15 advanced by a drum 2O likewise driven by the arbor 16. A portion of the circular chart 14, or the strip 15, in proximity to the arm 13 is unsupported and is designed to be pe riodically tapped by means of a'hammer 21 driven by the clock 17; or, if desired, by a separate movement (not shown), as fully set forth in my rior-U. S. patent #813,689.

T he recor g arm 13 carries at its free end a capillary tube 22 adapted to retain a minimum quantity of marking fluid, its marking end bein preferably reduced, as shown in the detai view Fig. 5, to improve and to direct the capillary action and to afford a fine marking point. This-is readily obtained by inserting a second capillary tube 23 within the tube 22, Fig. 5. I prefer to'cmploy a capillary tube of glass as the second or marking tube 23, as it is a very easy matter to obtain a fine point with same, and the tube being of glass is not corroded by the ink and thus reduces the dangerof becoming clogged.

.The arm 13, of course, may be rovided with e of glass or only one tube and this may other suitable material. Y

Secured to the actuating mechanism casing 12, is a bracket 24 carrymg a receptacle25 for the marking fluid used to make a record upon the recording surface 14 or 15. This rece tacle is shown in the form of a tube, cut longitudinally at one side, and containing some suitable'absorbent material as a Wick 26. One end of the wick 26 dips into a well 27 attached to and below the tube 25and containing sufficient marking'fluid. A lid 28 closes the well to prevent the entrance of the dust and other foreign material. The bracket 24, receptacle 25 and Well 27 swing with the casing 12 and itsrecording arm 13, so that the various mechanisms maintain their relative positions, and the entire mechanism may be swung out of the way when it is detion to the arm 13 which: normally swings i free and clear of both the record surface and l at both ends and located between fsaid'sourc'e inking pad. This causes its tube 23 to make a record, and practically simultaneously therewith to impinge against the ink pad 26 and thus receive a slight supply of ink. A pro er sup ly is thus afiorded to tube 22 and s elivere through tube 23 to the record surface 14 or 15, the total quantity of ink carried by the tubes 22 and 23 and thereby the arm 13, however, being extremely small. The sensitiveness of the instrument is thereby not impaired; and the desirable features, of having an ink record and one which is made u on a chart in a vertical plane, are obtained.

Although I have illustrated and described .the device with the record surface vibrated it is understood that if desired, either of the other two recording elementsthe recording armor the inking pad'migl1t be vibrated.

I claim:--

1. In a recording device: the combination with a movable record surface, a recording arm, a capillary marking tube carried by same, and a source of marking fluid, of means to cause said marking tube to periodically make contact with said source of marking fluid and with said record surface.

2. In a recording device:- the combination with a movable record surface, a recording arm, a markingtube carried by same, and a source of marking fluid, of means to cause said tube to periodically and simultaneously make contact with said source of marking fluid and with said record surface.

- 3. In arecording device: the combination with a movable record surface, a recording arm, a capillary tube open at both ends and carried by said arm, and a source of marking fluid in the path described by said tube, of-

means to cause said tube to periodically make contact with said source of marking fluid and with said record surface.

4. In a recording device: the combination with a movable record surface, a recording arm, a capillary tube open at .both ends and carried by said arm, and a source oimarking fluid in the path described by said tube, of means to periodically vibrate said record surface to cause said tube to make contact with said .source of marking fluid and with said record surface.

5. In a recording device: the combination with a movable record surface, a recording arm' and a source of marking fluid, of a capil lary tube carried by said recording arm, open at both ends and located between said source of marking fluid and said record surface, and means to cause said tube to periodically make contact with said source of marking fluid and with said record surface.

6. In a recording device: the combination with a movable record surface, .a recording arm and a source of marking fluid, of a capillary tube carried by said recording arm, open of marking fluid and said record surface, and means to periodically vibrate said record surface to cause the said capillary tube to periodically make contact with said source pf marking fluid and with said record surace. I

7. In a recording device: the combination with a movable record surface, a recordin arm and an inking pad in the path describe bysaid arm, of a capillary tube carried bysaid recording arm, open at both ends and located between said inking pad and said record surface, and means to periodically vibrate said record surface to cause the. said capillary tube to periodically make contact withsaid inking pad and with said record surface.

8. In a recording device: the combination with a movable record surface, a hinged mechanism casing, a recording arm and marking means carried by same, .of a source of marking fluid carried by said hinged casing, and means to cause said marking means to periodically make contact with said source of marking fluid and with said record surface.

9. In a recording devicef amovable record surface; recording 'means; and a source of marking fluid comprising aretaining receptacle in thepatlmofsaid recording means, and absorbent material within saidreceptacle having. a portion thereof exposed to the said recording means.

10. In a recording device: a movable record surface; recording means; and a source of marking fluid comprising a retaining receptacle in the path of said recording means,

absorbent material within said receptacle having a portion thereof exposed to the said recording means, and a well for the marking fluid, connected to said receptacleand into which the said absorbent material dips.

11. In a recording device: an inking pad arm, open at both en s,- and substantially perpendicular to'said arm.

13. In a recording device: a recording arm; a capillarytube'carried by said arm, 0 en at both ends, and substantially erpen 'cular to said arm; and a glass, capi ary marking tip carried by said tube. Y

. 14. In a recording device: a recording arm;

an inking pad comprisin a tube out lon tudinally at one side, an a suitable absor ent material for the marking fluid within said tube and exposed along the longitudinal cut; and a capillary marking tube reduced at one end'and carried by said recording arm.

15. In a recording device: a recordin arm;

an inking pad comprising a tube cut ongitudinally at one side; a suitable absorbent s ams material for the marking fluid, Within said a. capillary tube carried by said recording tube and exposed along the longitudinal arm; and a second glass capillary marking cut; a capillaiy tube carried by said recordtip carried by said tube.

ing arm; and a second capillary marking tube Signed at New York in the county of New carried by said tube. York and State of New York this 22nd day 15 16. In a recording device: arecording arm; of December A. D. 1908. v

an inking pad comprising a tube out longi WXLLIAM H. BRISTQL.

tuclinally at one side; a suitable absorbent Witnesses:

. material for the markin fluid, within said FREDK. SCHUETZ,

10 tube and exposed along t e longitudinal out; i SALLY O. Yumzmr. 

